diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 68d5dea0..ab155570 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -5,12 +5,6 @@ concurrency:
   cancel-in-progress: true
 
 on:
-  push:
-    branches:
-      - main
-      - v[0-9]+
-      - v[0-9]+.[0-9]+
-      - cryostat-v[0-9]+.[0-9]+
   pull_request_target:
     types:
       - opened
@@ -18,6 +12,12 @@ on:
       - synchronize
       - labeled
       - unlabeled
+    branches:
+      - main
+      - v[0-9]+
+      - v[0-9]+.[0-9]+
+      - cryostat-v[0-9]+.[0-9]+
+
 jobs:
   build-core:
     runs-on: ubuntu-latest